{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn08236_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Hartford, South-Dakota | 1909 | mapsnap generated fit (2026-09-21)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-21"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"5"},{"label":"placed","value":"4"},{"label":"unplaced","value":"1"},{"label":"fit sources","value":"georef 4"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 5 panels"},{"label":"unplaced pages","value":"p2__3 (tier 2, 43.62288,-96.94483 +/-215m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184hm:g082361909:08236_1909-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, South-Dakota | 1909 | sanborn08236_004 p1 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"20"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-09-21T12:54:56Z","modified":"2026-09-21T12:54:56Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184hm:g082361909:08236_1909-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184hm:g082361909:08236_1909-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1628.0,1867.5 1628.0,0.0 615.9,0.0 615.9,53.0 619.0,1269.5 0.0,1275.8 -0.0,1861.1 1628.0,1867.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184hm:g082361909:08236_1909-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[857.0,683.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.9456935,43.6252148]}},{"type":"Feature","properties":{"resourceCoords":[857.0,1861.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.9456786,43.6230553]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184hm:g082361909:08236_1909-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, South-Dakota | 1909 | sanborn08236_004 p1 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"6"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2476.0"},{"label":"split_canvas_h","value":"5103.2"}],"created":"2026-09-21T12:54:56Z","modified":"2026-09-21T12:54:56Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184hm:g082361909:08236_1909-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184hm:g082361909:08236_1909-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"589.8,443.4 616.9,444.9 615.9,53.0 615.9,0.0 214.4,0.0 214.6,105.4 67.0,104.4 67.5,626.9 115.9,626.9 126.7,1274.5 619.0,1269.5 617.0,461.9 589.8,443.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184hm:g082361909:08236_1909-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[67.0,626.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.944145,43.6219638]}},{"type":"Feature","properties":{"resourceCoords":[590.0,626.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.942644,43.6219676]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184hm:g082361909:08236_1909-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, South-Dakota | 1909 | sanborn08236_004 p2 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"15"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-09-21T12:54:56Z","modified":"2026-09-21T12:54:56Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184hm:g082361909:08236_1909-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184hm:g082361909:08236_1909-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1320.0,1927.0 1320.5,1599.9 1628.0,1599.6 1628.0,672.7 1574.5,671.8 1583.6,93.9 161.3,67.4 162.3,0.0 0.0,-0.0 0.0,1509.8 475.8,1510.9 475.7,1927.0 1320.0,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184hm:g082361909:08236_1909-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[394.0,653.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.947212,43.6219542]}},{"type":"Feature","properties":{"resourceCoords":[996.0,80.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.9456786,43.6230553]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184hm:g082361909:08236_1909-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hartford, South-Dakota | 1909 | sanborn08236_004 p2 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"6039.2"},{"label":"split_canvas_w","value":"1903.2"},{"label":"split_canvas_h","value":"1668.8"}],"created":"2026-09-21T12:54:56Z","modified":"2026-09-21T12:54:56Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184hm:g082361909:08236_1909-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184hm:g082361909:08236_1909-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"106.3,1906.8 475.7,1927.0 475.8,1510.9 460.1,1510.9 105.7,1534.9 106.3,1906.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184hm:g082361909:08236_1909-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1509.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.94284075632389,43.62309458758847]}},{"type":"Feature","properties":{"resourceCoords":[475.8,1509.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.9416042531802,43.62309630555341]}},{"type":"Feature","properties":{"resourceCoords":[475.8,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.94160217088397,43.62230961186561]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.94283867402766,43.62230789390067]}},{"type":"Feature","properties":{"resourceCoords":[73.0,1534.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.942651,43.6230478]}}]}}]}